Based on my previous post on Web Scraping I coded and uploaded the Function "GScholarScraper" HERE for testing!The function will pull all (!) results, processing pages in chunks of 100 results/titles, and return a file with all titles, links, etc. It w...
The outcome presented above will not be very useful to most of you - still, this could be a good example for what possibly can be done via web scraping in R.Background: TIRIS is the federal geo-statistical service of North-Tyrol, Austria. One of many g...
I found that examples for the use of regex in R are rather rare. Thus, I will provide some examples from my own learning materials - mostly stolen from the help pages, with small but maybe illustrative adaptions.ps: I will extent this list of examples...
OUTDATED! Please see the update HERE!...When reading Scott Chemberlain's last post about web-scraping I felt it was time to pick up and complete an idea that I was brooding over for some time now:When a scientist aims out for a new project the firs...
..I'm overwhelmed by the ever-growing loads of data that's made available via the web. I.e., IUCN collects and hosts spatial species data which is free for download. I'm itching to play with all this data... And, in the end there may arise ...
A simple example for drawing an occurrence-map (polygons with species' points) with the R-packages maptools and sp using shapefiles.HERE is the example data.Read more »
In R it's quite easy to pull out anything from a webpage and I'll show a little exercise in doing so.Here I retrieve all blog addresses from R-bloggers by the function readLines() and some subsequent data processing.Read more »
...some more playing with saveHTML, as.raster() and rasterImage(), producing a "flickering screen":Read more »
...I really dig the animation package! ..so here's the outcome of my firsts encounters with saveHTML() - I produced an animation with pre-existing images by utilizing the functions readJPEG() and rasterImage() from the R-packages jpeg and ReadImage...
Here's an example of how to easily produce real nice distribution maps from GBIF-data in R with package maps... Read more »
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
